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Inventories
6 Months Ended
Nov. 30, 2018
Inventories

2. INVENTORIES

Inventories are stated at the lower of cost, determined by the first-in, first-out method, or net realizable value. The components of inventories follow:

 

     November 30,
2018
     May 31,
2018
 
     (in thousands)  

Raw materials

   $ 36,563      $ 36,702  

Work-in-process

     7,601        5,993  

Finished and purchased goods

     35,309        33,310  
  

 

 

    

 

 

 
   $  79,473      $ 76,005